Oracle Pro*c到Sybase EsqlC的移植

[align=center]区别项[/align]	[align=center]Pro*c[/align]	[align=center]Esql/C[/align]
SQL函数	NUL()	ISNULL(),注意类型需一致
SQL函数	DECODE()	CASE… WHEN…ELSE…END
数据类型	VARCHAR，该类型是一个结构，包括arr和len两个成员，使用范例： db_vString.arr[db_vString.len]='/0'; db_vString.len =strlen((char*)db_vString.arr);	CS_CHAR类似c中的char类型，但不自动补齐’/0’，较char类型节省空间
SQLCODE返回值	1403为无记录	100为无记录
SQL语句		唯一标识的语法加入distinct报错误
错误处理	未采用	EXEC SQL WHENEVER sqlerror EXEC SQL WHENEVER sqlwarning EXEC SQL WHENEVER not found 未采用，加入有错误

MakefiOracle makefile:
SETUPDIR=
CC = gcc
TARGETDIR =
TESTDIR =
PUBDIR =
SRCDIR =
OBJDIR =
CFLAGS = -I $(OBJDIR) -I $(PUBDIR) -lm
#for 64bit
#CFLAGS = -I $(OBJDIR) -I $(PUBDIR) -lm -m64

ORALIBS= -I ${ORACLE_HOME}/precomp/public -I. -I${ORACLE_HOME}/rdbms/public -I${ORACLE_HOME}/rdbms/demo -I${ORACLE_HOME}/plsql/public -I${ORACLE_HOME}/network/public -L${ORACLE_HOME}/lib/ -lclntsh
PCFLAGS= include=$(SRCDIR) include=$(PUBDIR) include=/usr/i386-glibc-2.1-linux/lib/gcc-lib/i386-glibc21-linux/egcs-2.91.66/include

all: $(OBJDIR) $(TARGETDIR)/ConfigChg

$(OBJDIR):
-mkdir -p $(OBJDIR)

clean:
-rm -rf $(OBJDIR)
-rm -f $(TARGETDIR)/ConfigChg

$(TARGETDIR)/ConfigChg: $(OBJDIR)/PubFunc.o $(OBJDIR)/ConfigChg.o
$(CC) -o $@ $(CFLAGS) $(ORALIBS) $(OBJDIR)/PubFunc.o $(OBJDIR)/ConfigChg.o

#pc compile
$(OBJDIR)/ConfigChg.o : $(SRCDIR)/ConfigChg.pc
proc parse=no iname=$(SRCDIR)/ConfigChg.pc oname=$(SRCDIR)/ConfigChg.c $(PCFLAGS)
$(CC) -c -o $@ $(CFLAGS) $(ORALIBS) $(SRCDIR)/ConfigChg.c

$(OBJDIR)/PubFunc.o : $(PUBDIR)/PubFunc.pc
proc parse=no iname=$(PUBDIR)/PubFunc.pc oname=$(PUBDIR)/PubFunc.c $(PCFLAGS)
$(CC) -c -o $@ $(CFLAGS) $(ORALIBS) $(PUBDIR)/PubFunc.c

Sybase Makefile:

SETUPDIR=
CC = gcc -g
TARGETDIR =
TESTDIR =
PUBDIR =
SRCDIR =
OBJDIR =
RELDIR = $(SYBASE)/$(SYBASE_OCS)
# Sybase include directory
INCDIR = $(RELDIR)/include
#
# Modify the following line to use debug/nondebug libraries
#
#LIBDIR = $(RELDIR)/devlib
LIBDIR = $(RELDIR)/lib

# Specify the include and library search paths for the compiler
INCLUDE = -I. -I$(INCDIR) -I$(PUBDIR)
LIBPATH = -L$(LIBDIR)

PRECOMP = $(RELDIR)/bin/cpre

SYBLIBSCT = -lsybct
SYBLIBS = -lsybtcl -lsybcs -lsybcomn -lsybintl -lsybunic
SYSLIBS = -B dynamic -lsocket -lnsl -ldl -lm

all: $(OBJDIR) $(TARGETDIR)/ConfigChg

$(OBJDIR):
-mkdir -p $(OBJDIR)

clean:
-rm -rf $(OBJDIR)
-rm -f $(TARGETDIR)/ConfigChg
-rm -f $(PUBDIR)/PubFunc.c

$(TARGETDIR)/ConfigChg: $(OBJDIR)/PubFunc.o $(OBJDIR)/ConfigChg.o
@ printf "$(CC) $(OBJDIR)/PubFunc.o $(OBJDIR)/ConfigChg.o $(INCDIR)/sybesql.c $(INCLUDE) $(LIBPATH) $(SYBLIBSCT) $(SYBLIBS) $(SYSLIBS) -o $@/n";
$(CC) $(OBJDIR)/PubFunc.o $(OBJDIR)/ConfigChg.o $(INCDIR)/sybesql.c $(INCLUDE) $(LIBPATH) $(SYBLIBSCT) $(SYBLIBS) $(SYSLIBS) -o $@

#pc compile
$(OBJDIR)/ConfigChg.o : $(SRCDIR)/ConfigChg.c
@ printf "$(CC) $(INCLUDE) -c -o $@ $(SRCDIR)/ConfigChg.c/n";
@ $(CC) $(INCLUDE) -c -o $@ $(SRCDIR)/ConfigChg.c

$(SRCDIR)/ConfigChg.c : $(SRCDIR)/ConfigChg.cp
@ printf "$(PRECOMP) -O $@ $(SRCDIR)/ConfigChg.cp/n";
@ $(PRECOMP) -O $@ $(SRCDIR)/ConfigChg.cp

$(OBJDIR)/PubFunc.o : $(PUBDIR)/PubFunc.c
@ printf "$(CC) $(INCLUDE) -c -o $@ $(PUBDIR)/PubFunc.c/n";
@ $(CC) $(INCLUDE) -c -o $@ $(PUBDIR)/PubFunc.c

$(PUBDIR)/PubFunc.c: $(PUBDIR)/PubFunc.cp
@ printf "$(PRECOMP) -O $@ $(PUBDIR)/PubFunc.cp/n";
@ $(PRECOMP) -O $@ $(PUBDIR)/PubFunc.cp